Added JWT Oauth Support and Response documentation support

###Following Updates are done###
* Now JWT OAuth 2.0 is supported.
* Now we can document response types for the API. See the jwttest.json for details.

###Attached the response documentation screenshot###
![jwt based oauth 2 0 auth code api documentation](https://f.cloud.github.com/assets/571089/1881430/1c9d48b6-7966-11e3-9391-4134d10a8b1a.png)

what exactly does this do?